Select fire switch form factor system and method

Abstract

A wellbore select fire switch retaining member system and method with an integrated through wire and ground wire in a switch sub. The system/method includes a retaining member that has a form factor acceptable by a conventional switch sub. The retaining member incorporates an electrical connection to the center pin of a pressure switch. The system further includes a secondary piston aligned with a piston in the switch (switch piston) so that external pressure is fully acted upon the entire switch piston creating a reliable switch connection. Another system includes an integrated retaining member and switch module having a form factor compatible with existing switch subs. The integrated module inputs include a ground wire and a through wire and the outputs include a ground wire, through wire and an arming wire.

The invention claimed is: 
     
       1. An integrated electronic switch for use with a gun string, the integrated electronic switch comprising:
 a body having a first end, a second end, and a body portion extending between the first end and the second end; 
 a selective electronic switch encapsulated in the body; 
 a plurality of input electrical members electrically connected to the selective electronic switch; and 
 a plurality of output electrical members electrically connected to the selective electronic switch, 
 wherein each of the input electrical members and the output electrical members extends from an inside of the body to outside the body so that each of the input electrical members and the output electrical members has a portion inside the body and another portion outside the body. 
 
     
     
       2. The switch of  claim 1 , wherein the body is cylindrical. 
     
     
       3. The switch of  claim 1 , further comprising:
 an o-ring seal provided around the body. 
 
     
     
       4. The switch of  claim 1 , further comprising:
 a retaining member integrated into the body at the first end of the body. 
 
     
     
       5. The switch of  claim 4 , wherein the retaining member comprises:
 a retaining head; and 
 a threading member for attaching the switch to a switch sub. 
 
     
     
       6. The switch of  claim 1 , wherein the plurality of input electrical members comprises:
 a ground wire; 
 an arming wire; and 
 a through wire. 
 
     
     
       7. The switch of  claim 1 , further comprising:
 a logic controller; 
 a timer; and 
 a memory. 
 
     
     
       8. The system of  claim 1 , wherein the selective electronic switch is pressure isolated within the body. 
     
     
       9. The system of  claim 1 , wherein the selective electronic switch is pressure isolated within an isolation chamber located in the body. 
     
     
       10. A system for firing a detonator, the system comprising:
 a switch sub for use with a gun string; and 
 an integrated electronic switch located within the switch sub and configured to work with the gun string, 
 wherein the integrated electronic switch includes:
 a body having a first end, a second end, and a body portion extending between the first end and the second end; 
 a selective electronic switch encapsulated in the body; 
 a plurality of input electrical members electrically connected to the selective electronic switch; and 
 a plurality of output electrical members electrically connected to the selective electronic switch, 
 
 wherein each of the input electrical members and the output electrical members extends from an inside of the body to outside the body so that each of the input electrical members and the output electrical members has a portion inside the body and another portion outside the body. 
 
     
     
       11. The system of  claim 10 , further comprising:
 a retaining member integrated at the first end of the body of the integrated electronic switch. 
 
     
     
       12. The system of  claim 11 , wherein the retaining member comprises:
 a retaining head; and 
 a threading member for attaching the switch to the switch sub. 
 
     
     
       13. The system of  claim 10 , wherein the plurality of input electrical members comprises:
 a ground wire; 
 an arming wire; and 
 a through wire. 
 
     
     
       14. The system of  claim 10 , wherein the integrated electronic switch further comprises:
 a logic controller; 
 a timer; and 
 a memory. 
 
     
     
       15. The system of  claim 10 , further comprising:
 a pressure switch for sensing a pressure from a downstream perforating gun. 
 
     
     
       16. The system of  claim 10 , wherein the integrated electronic switch fits inside the switch sub. 
     
     
       17. The system of  claim 10 , wherein the selective electronic switch is pressure isolated within the body. 
     
     
       18. The system of  claim 10 , wherein the selective electronic switch is pressure isolated within an isolation chamber located in the body.